Changes
/* PAL Type Detection */
10 OUT &7F00,&C0:POKE &4000,&C0
20 OUT &7F00,&C7:POKE &4000,&C7:OUT &7F00,&C0
30 IF PEEK(&4000)=&C7 THEN PRINT"PAL chip absent/inactive":END
40 OUT &BC00,&F:OUT &3DFF,&C7
50 IF PEEK(&4000)=&C0 THEN PRINT"PAL I/O layout on CRTC 0/1/2":END
